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Exceptional Sound Quality
The Hazelrigg Industries 4DI enhances audio performance with its all-triode vacuum tube design, offering power, depth, and dynamic range for various instruments.
KEY FEATURES
The Hazelrigg Industries 4DI is a 4-channel vacuum tube direct box that combines a fully all-triode design with high-headroom circuits. It offers enhanced audio performance for electric bass, guitar, synthesizers, and acoustic instruments, all housed in a 2U rackmount enclosure.
Features and Design
The 4DI is based on the legendary D.W. Fearn VT-1/F, re-engineered to offer four channels instead of the original two, making it suitable for both stage and studio applications. Its all-triode vacuum tube design ensures exceptional sound quality, adding power, depth, and dynamic range to any instrument it connects to, from electric basses to synthesizers and acoustic guitars.
Front Panel Layout
The front panel has four locking ¼” instrument inputs, giving reliable connections for all inputs. Each channel also features a ground lift switch with LED indicators to signal ground lift status and signal presence. These controls allow for clear and stable performance in live or studio settings, reducing unwanted noise or hum.
Rear Panel Connections
On the rear panel, users find four additional ¼” input and passthrough jacks, wired in parallel with the front panel connectors. This setup allows easy integration into larger signal chains. Additionally, there are four XLR microphone-level outputs for each channel, providing flexibility for routing signals to mixing consoles or recording devices. The rear panel also includes an IEC mains socket, a power switch, and a voltage selector (115V-220V) for international compatibility.
Performance and Applications
With its high-headroom circuit design, the 4DI enhances the natural sound of electric and acoustic instruments. It delivers powerful, dynamic results for bass and guitar, adds warmth and richness to synthesizers, and brings realism to piezo-equipped acoustic instruments. This makes it an indispensable tool for professional audio environments where sound quality and reliability are paramount.
- 4-channel all-triode vacuum tube direct box housed in a 2U rackmount enclosure
- Locking ¼” instrument inputs on the front panel for secure connections
- Ground lift switches with LED indicators for each channel
- ¼” input and passthrough jacks on the rear panel, wired in parallel with the front
- XLR microphone-level outputs for each channel for versatile routing
- IEC mains socket, power switch, and 115V-220V voltage selector for global use
- High-headroom circuit design for enhanced performance on electric, acoustic, and synthesised instruments
- UK over £99 FREE
- UK under £99 £10
- EU £36
- Rest of World £80
Large/Heavy items: Extra charges may apply (e.g., consoles, large monitors). We’ll contact you before processing if so.
We ship with DPD and UPS across the UK, EU and worldwide. Same-day within the M25 is available depending on stock.
This item, like everything we supply, comes with the complete support of our expert team. Our excellent technicians have been specifying, building and supporting studios for over twenty years. If you have any problems with installation, setup or everyday use, they’re never more than a click away, and always happy to help.
You can contact them here.
KEY BENEFITS
Versatile Connectivity Options
With front and rear panel inputs and outputs, including XLR and ¼” jacks, the 4DI allows easy integration into both live and studio setups, ensuring flexible signal routing.
High-Performance Circuitry
Designed with high-headroom circuits, the 4DI delivers dynamic and powerful results, making it ideal for professional environments where sound quality and reliability are critical.